Will these work for external speakers on my 2007 gmc envoy? Would i need to puchase an additional amplifier and if so what is the best one to get?
1567
No they will not. You are only supposed to mount speakers to the inside of your vehicle you damn porch monkey!!
1568
Without knowing the details of the installation I can't answer your question. But I mounted them in the rear facing gun wall of my boat. As for the amp...I did add an amp as well. I chose to match my amp manufacturer to my stereo manufacturer, Sony. It sounds great.
1753605
I don't know much on the specs of the speakers but the amp is rated at 4/2 ohms on the front and rear inputs and the last input is 4/2/1 ohm so I would think it would work great. Just don't turn the gain up too high if your using an aftermarket head unit.
1703641
Any speaker can be wired directly to your stereo or amp, assuming the impedance of each end matches (speakers of higher impedance can be wired to devices outputting lower, but power and efficiency will be lost) if you are looking to use these in an automobile environment, you will likely need an external amp to drive them, but solely from a power perspective. They will operate powered from your stereo, but will be very underpowered. This will decrease the life of the speaker and lead to subpar sound. Look to purchase a quality amp that will output the quoted RMS and ohms of the speaker.
768001
I have them wired into my car; attached to the back of the driver and passenger seat. For my purpose using an external amp is the only way I could give them enough power, isolate the bass tone, and the added benefit of having a bass level knob is always a plus. If you're doing a home theater system as long as you give them the proper amount of power crossovers will work.
1817255
Yes as long as they are self powered and are connected with 1/8" stereo jack then you are good to go. There is no on board speaker amp so plain speakers will not work!
367292
If you are using them for your rear speakers, they will be just fine with your system. We have about same set up and they work very nice.
2007710
technically no but all buys aftermarket speakers and not put an amp on them. it just makes it sound a lot better. i was in the same boat. bought these and 6.5's for the door they sounded a alright but after I put an amp it mKe them sound a lot better. you can go with a alpine 4 ch amp. 300 watt would be great
260752
As has already been said, your receiver is set up for 2 "sets" or pairs of front and rear speakers, so 2 pairs of these using existing speaker outs should be just fine, and better than stock for sure. I made a cooler speaker box with one pair to be run off my car's 320W RMS amp, and it sounds AWESOME!
2217264
My speakers are plugged into the original radio/cd player of my car. I am sure your installer can answer more specific amp and aftermarket equipment questions before any purchases or any work is done. In either case, I am very satisfied with the speakers!
144274
I concur with the others on this question. You do need an amplifier for these speakers.
1828511
You don't need an amp, but you should check to see if your current speakers are 6" x9". If they aren't, then these will not fit without extensive modification to your car.
1871124
You will need any type of external ant, I used generic 6" west marine speakers for my install, they worked great
2124459
They are 4 ohm speakers. They need some power to drive them. They can be ran without an amp if the head unit has enough power. I would say a min of 30 watts per side but they will sound the best with 75 to 200 watts.
1351818
You could use these for your front L/R speakers. There's no way that I would use then from my rear or my surround speakers. They're too big for surround or rears. You didn't mention your receiver model. Of course, if it's only a 5.1 receiver, you still need to upgrade to a 7.1 receiver.
1266237
These are passive not active which means you will need some type of amplifier. Somthing like this will do: http://www.amazon.com/Pyle-2x75W-Stereo-Power-Amplifier/dp/B001P2R1RW/ref=pd_sim_e_3 However, you best bet is to get some type of active speaker system like this: http://www.amazon.com/Logitech-S220-Speaker-System-Subwoofer/dp/B000RQSGYO/ref=sr_1_3?s=electronics&ie=UTF8&qid=1294928014&sr=1-3 Michael
1207091
You will need some kind of power amp to drive these. Although small they are just a standard speaker as opposed to a powered speaker. Have a look at the Topping digital amps. I think they are great.
494992
If you already have speakers, get a receiver or amplifier. Amazon should have an assortment to browse.